Water-gage.



H. L. BEST, Sn.

Patented Apr. 11, 1916.

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WATER GAGE.

APPLICATION man JUNE s. 1915.

Patented Apr. 11, 1916.

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HARRY L. BEST, SRa, OF DAVIS, WEST VIRGINIA.

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Specification of Iietters Patent.

Patented Apr. 11, 1916.

Application filed June a, 1915-. Serial No. 32,930.

.To all whom it may concern: 7

Be it known'that I, HARRY L. BEST, Sr., a citizen of the United States, residing at Davis, in the county of Tucker and State of West Virginia, have invented a new and useful Water-Gage; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which .it appertains to make and use the same.

This invention relates to an improved water gage glass and valve construction for boilers and the like, and an object of the invention is to provide a device of this nature, in which the valves above and below are disposed to one side of the gage glass, so that by removal of a plug in the upper valve casing, the gage glass may be easily removed axially through the plug opening of said valve casing.

A further object of the invention is to provide means whereby said gage glass may only be removed, when the valve is closed. In other words, when the valve is opened, the valve locks the plug against being rotated or unscrewed, in which case the gage glass cannot be removed.

Inpractical fields the details of construction may necessitate alterations, falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings: Figure 1 is a view in side elevation of the improved gage glass and valve construction. Fig. 2 is a sectional view on line 2-2 of Fig. 1. Fig. 3 is a sectional view on line 3-3 of Fig. 1, showing the lower valve of the gage glass. Fig.

4 is 'a sectional view on line 44 of Fig. 2, showing how the plug of the upper valve casing may be] locked against being unscrewed or rotated. Fig. 5 is a sectional view on line 5-5 of Fig. 2, illustrating how the plug may be locked against being rotated for removal. Fig. 6 is an enlarged detail view of the plug and the valve, showing the means on the plug to be engaged by the valve to prevent rotation of the plug.

Referring more especially to the drawings, 1 designates a portion of a boiler or the-like having the usual upper and lower valve casings 2 and 3, threaded thereinto as shown at 4. Referring to the drawings, it

will be seen that the valve channel 5 of the lower valve casing is offset to one side of the vertical disposition of the water gageglass 6. Mounted in the lower valve casing is the usual valve 7, the stem of which is threaded at 8 into the casing, there bein the usual stuffing box or gland 9, the valve cooperating-with its seat 10, to cut off the Water from flowing into the gage glass, when removing the glass. The lower valve casing has the usual drain cock or valve 11 threaded thereinto, as shown at 12, for drawing oil the sediment and the like that usually collects in the casing. Where the lower ends of the water gage glass enters the valve casing 3 it passes through a suitable packing box or gland 13, thereby providing the usual Water tight connection.

Referring to the upper valve casing 2, it is to be observed that the valve channel or duct 14 is offset to'one side of the vertical plane of the gage glass, the seat 15 of which channel 1 ,1 is cooperated with by the valve 16, to cut off the water or the like from en tering the glass 6. The stem 17 (which is provided with the usual hand wheel 18) of the valve16 is threaded at 19 in the upper valve casing 2, there being the usual packing box or gland 20, through which the stem 17 passes. Particularly noting Figs. 1, 2 and 5 it is to be seen that the upper valve casing 2 has a threaded opening 21 which is axially alined with the water gage glass 6, and engaging the threads of said opening are the threads of a removable plug 22, having a flange 23, which engages the upper face of the valve casing 2. Where the glass' tube 6 connects to the upper valve casing 2,

it passes through asuitable packing gland or stufiing box 24. The water gage glass in cross section is of a diameter, a trifle smaller than the diameter of the threaded opening 21, so that when the gage glass needs repairing, or as well as the stuffing boxes or glands, or

when the valves need to be ground, the plug 22 may be unscrewed and removed, that 1s, after first closing each of said valves, then .--the water gage glass may be passed axially and verticallyv through the threaded opening 21, whereby the same may be cleaned or repaired. If the glass has become broken, it may be removed in a similar manner, and a new one inserted in its vplace. The removal of the gage glass in this manner is particularly desired, to obviate the necessity of draining the entire fluid from the boiler and the like, and then removing one or the other of the valve casing, that is, when it is essential that the glass should be removed. However, to avoid accidents, which may occur without thought and close observation, involving the removal of the plug before making surethat the valves are closed, that is, when it is desired to remove the glass, and which would cause the water or other fluid to unnecessarily flow, over the space above the boiler or the like, the plug is providedw'ith means or a flat surface 26 to be engaged by the valve 16, thereby preventing the plug from being unscrewed. Referring to Fig. 4 it is to be noted that when the valve 16 is opened, it will lie in the path of rotation of the plug, and prevent its unscrewing from the casing. As long asthe valve is closed, however, the plug may be removed.

The invention having been set forth, what is claimed as new and useful is 1. In combination, a gage glass valve casing, said casing having a lateral portion, a gage glass entering into and engaging the lateral portion, said valve casing having its valve channel disposed in a plane offset to one side of the vertical disposition of the gage glass, a valve likewise disposed and cooperated with the seat of said channel, said casing having an opening in its upper wall, said opening being larger in diameter than the diameter of the gage glass and alined axially therewith, and a plug threaded in said opening, and means carried by the plug to be cooperated with by the valve when the valve is opened to prevent the removal of .the plug, which in turn prevents the regage glass as long as the valve alined axially therewith, and a plug threaded in said opening, said plug having a fiat face to be cooperated with by the valve when the valve is opened to prevent the removal of the plug, consequently preventing the removal of the gage glass.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HARRY L. BEST, SR.

VVitIiesses:

C. J. DEAHL, H. A. MEYER. 

